baber/WOPTO huggingface dataset:
Patent GB-632207-A (GB)
Title: Improvements in and relating to vibratory screen decks
IPC: B07B1/48
Filed: 1947-02-26
Abstract: 632,207. Sifting and screening apparatus. NORDBERG MANUFACTURING CO. Feb. 26, 1947, No. 5580. Convention date, May 9, 1940. [Class 117] A vibratory screen deck comprises a number of, preferably not less than three, screen panels A, B, C. D, each of which is arched to form a transversely extending convex surface, and the panels are disposed at different angles to the horizontal to form a generally concave screening surface. Each panel, as shown, comprises a plurality of longitudinally extending arched rods or wires 12, the varition in convexity of the individual panels being sufficient to vary substantially the angular relation of the feed and the discharge end of each panel to the horizontal. The ends of rods 12 are received in transversely extending rubber supports 13 provided with inclined spaced apertures, and received in channel members carried by the cross frame angle members 2, 3, 4, 5 and 6. The forward surfaces of the intermediate rubber supports 16 and of the end member 22 are bevelled as at 21 permitting easy flow of the material up those faces to drop over the opposite faces thus to form agitating baffles. The arched rods are supported at intermediate points in slots in the tops of rubber members 77, and are self-locking due to their resistance to flexure. The rods preferably rectilinear are of steel having a hardness of not less than 300 Brinell and having a ratio of length to thickness of not less than 60 and not more than 190 and a yield point sufficient to permit a flexure of not less than 2¢ in. without permanent set in a length of approximately 2 ft. Such steel preferably has a carbon content of not less than 0.45 per cent and of approximately 0.60 per cent. The screen frame structure is mounted upon an inclined flexible link 51 having a rubber pad 52 at the top and a rubber pad 53 at the bottom, the whole being held together by bolts 54 and flexible rubber bushings 55. Deck springs 56 serve to cushion the movement of the screen deck and link 51. The opposite end of the screen deck is supported by tension rods 58, supported by compression springs 60. Vibration is produced by unbalanced rotor 75.
Patent GB-889575-A (GB)
Title: Improvements in or relating to calorimeters
Inventor: MIJNLIEFF ARY JACOBUS
IPC: G01K17/14
Filed: 1960-02-17
Abstract: 889,575. Integrating-apparatus. PROVINCIAAL EN GEMEENTELIJK UTRECHTS STROOMLEVERINGSBED-RIJF N.V. Feb. 17, 1960, No. 5605/60. Class 106 (4). [Also in Group XX] In a heat meter of the type having a flowmeter 1, Fig. 1, driving a counter 34 by means of a coupling mechanism which is placed into and out of coupling connection by means related to the temperature, a pair of Bourdon tubes 3, 4, are connected by levers 6, 7, toothed segments 9, and pinions 10, 13 to coaxial spindles 11, 14 which carry radial arms 12, 15. Therefore on rotation of the flowmeter 1, a holder 19 connected by arm 18 to a disc 17 is rotated about the axis of spindle 11 by means of gear-wheels 2, 16, the gear-wheel 16 being rigid with disc 17, and at each revolution a pin 27 abuts arm 15 so that shaft 22 carrying pin 27 is turned through a quarter turn and subsequently the shaft 22 is turned back again by pin 28 on shaft 22 striking arm 12. A slide 20 within holder 19 is axially moved by rotation of the shaft 22 and a pawl 21 carried by the slide only engages a crown-wheel 30 when the slide is in its lowered position. In a modification in which the motion transmitted to counter 34 is proportional to the difference in temperature of the Bourdon tubes only above a certain specified minimum temperature difference, Bourdon tube 4 drives a spindle having a projection which actuates the arm 15, which is freely mounted on the spindle, above the minimum temperature difference, but below it, the arm 15 is positioned by a member fixed to the spindle actuated by the Bourdon tube 3.
Patent GB-779601-A (GB)
Title: Improvements in or relating to display tables
IPC: A47F3/14
Filed: 1954-02-27
Abstract: 779,601. Display table. BOOTHROYD, W. G. Feb. 28, 1955 [Feb. 27, 1954], No. 5825/54. Class 52 (3). A display table consists of a supporting frame with an invertible top presenting on one side a flat surface and on the other a compartmented area in which small articles may be displayed for sale. The top comprises a flat sheet 6 (Fig. 1) having an upstanding rim 7, the space inside the rim being compartmented by partitions 8 which may be adapted to hold price tickets &c. The supporting frame has detachable legs and is provided with skirting 4 and struts 5 to prevent displacement of the top. In a further embodiment (Fig. 2) the top need not completely cover the frame which then has an upstanding edge 11 with, affixed to it, a base member 12, 13, together with a removable flat sheet 18 which may be placed between the base and the top unit or may rest on the latter. The sheets 7, 18 may have knock out portions to facilitate the building of displays &c. The plan of the display table may be of any shape but is preferably an elongated D when several such tables may be arranged together.
Patent GB-588881-A (GB)
Title: Improvements in or relating to desk lamps
IPC: F16M11/14
Filed: 1945-03-08
Abstract: 588,881. Lamp supports. BERGMANN, R. March 8, 1945, No. 5850. [Class 75 (iii)] [Also in Groups XIV and XXV] In a universally adjustable desk lamp, an arm H carrying the lamp bulb and shade J is attached to a support B on a base-plate A by a tubular member E having inturned ends and containing a helical spring F pressing spherical-faced washers G against balls C, D at the ends of the support B and arm H. The tubular member E consists of telescoping portions E<1>, E<2>, the length of which may be adjusted by the engagement of a pin L on the inner tube with notches K on the outer tube to vary the tension of the spring. The lamp leads M pass from a switch N on the base A through the balls C, D. The provisional Specification states that a tube arranged between the balls is surrounded by two tubes engaging the opposite sides of the walls, one tube carrying a helical spring threaded into the other tube.
Patent GB-787614-A (GB)
Title: Improvements in or relating to tyre building machines
IPC: B29D30/18
Filed: 1956-02-24
Abstract: 787,614. Tyre building machine. CONTINENTAL GUMMI-WERKE AKT.-GES. Feb. 24, 1956 [May 9, 1955], No. 5874/56. Addition to 777,130. Class 144 (1). The tyre-building machine of the parent Specification is provided with a bead-positioning device 34, 35 movable axially of the tyre former 4 and comprising two concentric members 34, 35 which are relatively telescopic against the action of a resilient restraining force, such as a spring 38, the bead-ring 44, being located around the outer periphery of the inner member 35 against the end surface of the outer member 34. As shown, the outer member 34 is carried by radial arms 33 of a sleeve 32, which is slidable on the former spindle 3 and within the holding tube 2, and the inner member 35 is carried by arms 36 of a guide 37 slidable on the sleeve 32. In the bead positioning operation, axial movement of the inner member 35 is limited, to prevent damage thereby of the ply edges 11<SP>11</SP>, by abutment of the guide 37 against a ring 39 rigidly mounted on the spindle 3 to lie within the former 4, the ring 39 having adjustable former supports 43. Continued axial movement of the outer member 34 over the member 35 serves to lift the former 4 from its spindle 3, causing the ply edges 11<SP>11</SP> to'ride over a rollable helical spring 40 carried in a peripheral groove in the ring 39 and to be stitched thereby to the inner periphery of the bead-ring 44.
Patent GB-659443-A (GB)
Title: Improvements in and relating to multirotor helicopters
IPC: B64C27/26
Filed: 1949-03-04
Abstract: 659,443. Multi-rotor helicopters. CIERVA AUTOGIRO CO., Ltd., PULLIN, C. G., and WATSON, K. March 4, 1949, No. 5961. [Class 4] A multi-rotor helicopter comprises a pair of side-by-side rotors 12, 13, carried by outriggers 15, 16 hinged at 38, 39 to the fuselage to allow the outriggers to be swung forward and folded against the fuselage for parking, the rotor power transmission shafts 28, 29 incorporating universal joints 33, 35 in alignment with the hinge axes. The rotor blades 14 are connected to the hubs by double hinges of known type to permit folding as shown in Fig. 4. The arrangement for detachably securing an outrigger to the fuselage shown in Fig 6 comprises a pair of pins 78, 79 engageable in holes in members 74, 75 and 76, 77 attached to the fuselage and outrigger respectively, and operable by a slidable rod 88. The outrigger is further located in the extended position by a pin which enters a socket 94 in the fuselage. Lateral 'undercarriage legs 20, 21 are supported by pairs of struts 22, 45 and 23, 46 whose ends are connected to the outriggers, and when the latter are to be folded the rear end of the fuselage is supported by a jack 44, Fig. 1 (not shown), to relieve the load on the wheels 18, 19. The power plant consists of two gas-turbines 24, 25, with a gear-box 26, driving the shafts 28, 29 and a further power shaft 27 for a single rotor at the front of the fuselage. The outer portions of the shafts 27, 28 are housed within the outriggers, the inner exposed portions having telescopic joints 37, and further universal joints 34, 36.
Patent GB-968465-A (GB)
Title: Electro-accoustic analysis of substances
IPC: G01N29/024
Filed: 1962-02-16
Abstract: 968,465. Ultrasonic analysis of materials. CHESAPEAKE INSTRUMENT CORPORATION. Feb. 16, 1962, No. 5984/62. Drawings to Specification. Heading H4D. Known relationships between the velocity of acoustic type waves in milk or milk products and the concentration of various components (e.g. fats, " solids-not-fat," water) at different temperatures (Figs. 1 to 5, not shown), are employed for determining the amount of such concentrations. One arrangement described for the velocity measurement involves the phase change produced in continuous ultrasonic (500 kc./s.) waves in travelling a known distance in the milk (Fig. 7, not shown). In another arrangement the velocity is derived from the frequency at which a blocking oscillator, operating at ultrasonic frequency and driving a transmitting transducer which produces pressure waves in the milk, is triggered either by signals produced by a receiving transducer positioned (in the milk) at a known distance from the transmitting (Fig. 7, not shown) or by signals reflected back to the transmitting transducer from a reflector positioned at a known distance from the latter (Fig. 7A, not shown).
Patent GB-488020-A (GB)
Title: Improvements relating to protective switching apparatus for electric motors
IPC: H01H71/58
Filed: 1938-02-25
Abstract: 488,020. Electrically released switches; cases. OLDAK, F. Feb. 25, 1938, No. 5990. Convention date, Dec. 3, 1937. [Class 38 (v)] Motor-protective apparatus of the kind provided with current-responsive devices, for example, bimetal strips carrying the motoroperating current, and with a switch mechanism for the control of the current of the devices, which mechanism is actuated by distortion of the devices on excess current, has the switch mechanism mounted entirely on at least one readily detachable outer wall of the switch chamber. Thus the latter may be of standard size and adapted to the chambers of currentresponsive devices of different ratings. In Fig. 5, the casing 10 containing the devices is provided with an extension 12 to one wall, which extension has a dovetailed recess in which fits a projection 15 on one wall a of a detachable structure 11 comprising the three mutually-perpendicular walls a, b, c which, with extension 12, form the housing for, and carry, the switch mechanism 7. The wall b carries a fishplate 13 by means of which, and screws 14, the casing-parts are secured together. Fig. 2 shows the part 10 with its cover removed. A U-shaped bimetal strip 1 is provided for each phase and its end operates on a screw 6 on an arm 5 attached to a shaft 4, which is rotatable about its axis and carries an arm 8, which is located adjacent the mechanism 7 when the latter is assembled in place. A reset-button 9 is provided. The mechanism 7 may, alternatively, be carried on a single detachable wall. Where the casing-part 11 is smaller than part 10, the difference may be made up by walls disposed perpendicularly on the extension 12 in the planes of walls a, b, so as to produce a casing of regular shape.
Patent GB-720011-A (GB)
Title: Improvements in liquid fuel injection equipment for internal combustion engines
IPC: F02M61/20
Filed: 1951-03-13
Abstract: 720,011. Fuel injection systems. KYLE, D. W. E. (Kockums Mekaniska Verkstads Aktiebolag). March 13, 1952 [March 13, 1951; Aug. 24, 1951] Nos. 6034/51 and 19998/51. Classes 7 (3) and 7 (6). [Also in Group XXVIII] The opening movement of a spring-loaded fuel-pressure actuated injection valve is controlled by a dashpot which is charged with fluid through the same passage or passages by which the fluid escapes from the dashpot cylinder to give the dashpot effect, the moving part of the dashpot merely abutting the needle valve, or a part through which the spring loading acts on the needle valve, so that the valve can close promptly irrespective of the rate of filling of the dashpot. In Fig. 1 the dashpot, comprising a cylinder 10 and spring-loaded piston 16 abutting the end of the spring- loaded valve stem 14, has fluid escape orifices 17, 24 leading to a space 18 filled with fuel leaking past the valve stem. Rotation of a screwed plug 22 fitting tightly in the end of the cylinder 10 adjusts the size of the orifice 24 formed therein and hence adjusts the dashpot action. The valve 15 lifts slowly due to the dashpot but is closed quickly by the spring 13 due to the one-way connection of the stem 14 with the piston 16. Rotation of the dashpot cylinder is prevented by a screw engaging a keyway 19 therein. In a modification, Fig 2, the dashpot piston 30, in contact with the valve stem slides in a cylinder 34, the dashpot fluid escaping through a fixed orifice 48, Fig. 3, and an orifice 47 adjusted by a spring-loaded sliding sleeve 38, the position of which is controlled by a screw 49 acting through an intermediate rod 50. The injection fuel is supplied by a pump comprising a spring-loaded plunger 54 actuated by a piston 53 subjected to the pressure in the engine cylinder, the fuel being supplied to the pump by a hydraulic accumulator. The dashpot adjustment means 22, Fig. 1, or 49, Fig. 2, may be interconnected with the fuel control means.
Patent GB-151897-A (GB)
Title: Means for regulating the delivery of ash or clinker from the chain grate stokers of boiler furnaces
IPC: F23H11/18
Filed: 1920-02-28
Abstract: 151,897. Babcock & Wilcox, and Spyer, A. Feb. 28, 1920. Grates. - T h e delivery of ash or clinker at the rear of a travelling grate is regulated by a vertically sliding door d provided on its lower edge with flaps i to form an air seal.
Patent GB-795766-A (GB)
Title: Improvements in or relating to ion sources
IPC: H01J49/12
Filed: 1956-02-28
Abstract: 795,766. Ion sources. ARDENNE, M. VON. Feb. 28, 1956 [May 10, 1955], No. 6096/56. Class 39(1). An ion source comprises an anode 2 and cathode 5 between which is effected a low pressure gas discharge, and the discharge is constricted by means of an aperture in an intermediate electrode 6 the aperture as shown being coaxial with the ion emitting aperture 3 in the anode 2. Ions from the plasma 9 are withdrawn by an electrode 10 through an acceleration zone 4. The anode 2 is preferably made of platinum and heated so as to eliminate unwanted charges caused by condensation thereon of residual organic vapours. In another embodiment a band or wire cathode is utilized with slit shaped apertures in the electrodes and a convergent beam in the plane of the slit may be formed enabling a magnetic field extending over a sector of only 60 degrees to be used in an associated isotope separator. Unwanted electrons in the ion beam may be removed by auxiliary electrodes maintained at a positive potential. When used with vapour ion sources the electrodes 2, 5 and 6 are maintained in a heated enclosure to prevent condensation, the chamber may serve as the anode. The walls of the gas discharge area may be covered with sand absorbing materials to reduce acoustic vibrations of the plasma.
Patent GB-336540-A (GB)
Title: Improvements in apparatus for drying slivers
IPC: F26B13/16
Filed: 1930-02-24
Abstract: 336,540. Fleissner, J. E., and Fleissner, E., (trading as Fleissner &; Sohn, C.). Feb. 23, 1929, [Convention date]. Drying materials in long lengths.-Cotton or wool slivers P are dried by passage over perforated drums T under suction placed closely together with internal cover plates D extending to the meeting surfaces of the drums from the vacuum so that suction passes the material from one drum to the next. Air drawn by fans from the drums passes over heating surfaces and is distributed equally above and below the drums. The cover plates D are adjustable and so arranged that suction on one drum is cut off from the material slightly before suction on the next drum causes it to transfer.
Patent GB-1123542-A (GB)
Title: Improvements relating to brushless synchronous machines
Inventor: EDWARDS JOHN DENIS
IPC: H02K9/20
Filed: 1966-02-11
Abstract: 1,123,542. A.C. motors with D.C. excitation; control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 16 Jan., 1967 [11 Feb., 1966], No. 6176/66. Headings H2A and H2J. In a brushless synchronous machine, e.g motor, arrangement whose field winding Fm is provided on its rotor and is energized from a co-rotating armature (E), Fig. 1, of an A.C. exciter over a rectifier bridge (RB) which is mounted for rotation with the machine and exciter rotors, and which includes a resistor R which limits the field winding terminal voltage to an acceptable value during starting and thyristors (T 1 , T 2 ) and T 3  which act as switches to shunt the rectifier bridge during starting and the resistor during synchronous running,. the resistor-shunting thyristor T 3  has its trigger connected to receive a train of pulses from a relaxation oscillator circuit which comprises a uni-junction transistor VT1 operable in response to D.C. excitation voltage produced by the arrangement. During starting, such voltage from the bridge (RB) increases until a Zener diode 24 breaks down whereupon the circuit comprising transistor VT1, capacitor C1, and resistors R3 to R6 produces in resistor R5 the triggering pulses. In other embodiments there are two or more parallel connected resistorshunting thyristors triggered by either respective or common oscillator circuits.
Patent GB-109230-A (GB)
Title: Improvements in Gas Heated Annealing and like Furnaces.
IPC: C21D9/00
Filed: 1917-05-04
Abstract: 109,230. Dowson & Mason Gas Plant Co., Wright, T., and Mawby E. W. May 4, 1917. Open-hearth furnaces.-In a gas-heated annealing or like furnace of the kind having gas and air burner orifices in its roof, the gas being delivered from a chamber b and air from a channel d, the gas orifices a<1>, a<2>, a<3>, and the burner orifices c<1>, c<2>, c' are graduated in size, the smallest being near the end of the channel d, so as to form and distribute the mixture of gas and air more evenly. A V-shaped baffle or deflector e is fitted near the orifices a<1>, c'. Each orifice c<1>, c<2>, c<3> has an upraised lip or flange f. The graduation of the orifice is preferably uniform, but may be otherwise, and may be limited to those nearest the baffle e, and may he effected by liners as shown.
Patent GB-1059292-A (GB)
Title: Improvements in or relating to pulse code systems
Inventor: LADWIG KARL-HEINZ
IPC: G08C15/12
Filed: 1964-02-14
Abstract: 1,059,292. Selective signalling systems. G. MANGER and K-H. LADWIG. Feb. 14, 1964, No. 6359/64. Heading G4H. A plurality of command signals selected by switches 13, Fig. 1, are transmitted in sequence under the control of an oscillator 1 and a counter comprising bi-stable stages 3. At the start of a transmission cycle, trigger 16 supplies a synchronizing pulse (first pulse, Fig. 7) to mixer 14 and radio transmitter 18. Each pulse from oscillator 1 is applied to mixer 14 as a channelmarking pulse (short pulses, Fig. 7), and to the counter, the output of which is fed to a diode matrix 4 to energize leads 5-12 in turn and produce command pulses in accordance with the positions of switches 13 immediately after the corresponding channel-marking pulses. At the receiver, Fig. 2, triggers 23, 24, 29 separate the channel-marking and synchronizing pulses, the former stepping a counter 25, 26, 27, and the latter resetting the counter to zero at the appropriate time in the cycle. Gate 22 is open whenever carrier frequency is received, and the command pulses are routed by diode matrix 30 to the corresponding channels 31-38 under control of the counter. Each channel includes a capacitor on which charge is built up over successive cycles until a predetermined level is reached so that the output relays 39-46 only operate if the corresponding command is received continuously over several transmission cycles. The system may be used for controlling a crane.
Patent GB-548893-A (GB)
Title: Improvements relating to the process of ion exchange applicable more especially to water softening
IPC: C01B33/46
Filed: 1941-05-17
Abstract: 548,893. Purifying water; zeolites. THOMPSON (KENNICOTT WATER SOFTENERS), Ltd., J., and KLEIN, A. May 17, 1941. No.. 6370. [Class 46] [Also in Group III] Zeolites which have lost their base-exchange capacity by contamination during use are reconditioned by treatment comprising the following steps :- (1) mechanical removal of impurities by washing and sieving, (2) treatment with dilute acid, e.g., sulphuric acid, of a strength not exceeding 35 per cent. solution, (3) treatment with stronger acid of 50 per cent. to 70 per cent. solution and (4) treatment with an alkaline solution of sodium aluminate to which sodium chloride may be added. The zeolite is washed with water after the treatment with the stronger acid and the alkaline solution and, preferably also, between the two acid treatments, and may be dried before treatment with the alkaline solution. Heat may be applied during the treatment with the solutions. The material may be finally stabilized by treatment with dilute solution of sodium silicate and aluminium sulphate or other salt, preferably after regeneration with a solution of sodium chloride.